Low-Voltage Cable Branch Box

Product Overview

The low-voltage cable branch box is a core complete device for achieving multi-branching, switching, and connection of cables in low-voltage distribution systems. It is suitable for AC 50/60Hz, rated voltage 220/380V (adaptable to 400V/690V) low-voltage distribution systems. Its main function is to efficiently distribute power from the main cable to multiple branch circuits, enabling flexible switching and safe management of cable lines. As a key node for end-user power distribution in urban distribution networks, industrial parks, and large buildings, it is an important infrastructure ensuring stable operation of the "last mile" of power. It is widely used in various indoor and outdoor distribution scenarios such as residential communities, commercial complexes, industrial parks, municipal road lighting, photovoltaic power stations, factory workshops, and rail transit lines.

This product adopts a copper busbar main conductive design, optimizes the internal wiring structure, and balances branching convenience with operational safety. The number of branch circuits, connection methods, and protection levels can be flexibly configured according to user requirements, adapting to the connection needs of cables with different cross-sections. It effectively solves problems such as messy cable branching, poor contact, and insufficient current-carrying capacity, achieving standardized branching, reliable connection, and efficient transmission of cable lines. With excellent protection performance, it adapts to different indoor and outdoor installation environments, ensuring flexible and stable operation of low-voltage distribution networks.

The product strictly complies with national and industry standards such as GB 7251 "Low-voltage switchgear assemblies" and GB/T 14048 "Low-voltage switchgear and controlgear", and has passed CCC certification. It uses first-tier domestic brand components. The core copper busbar is made of high-quality electrolytic copper or red copper, with the surface treated by tinning or silver plating for oxidation resistance. The entire production process undergoes full quality inspection. The protection level can reach from IP33 to IP65, featuring excellent dustproof, waterproof, and anti-corrosion performance. It adapts to different regions and scenarios and can operate stably for a long time, meeting the dual needs of low-voltage cable branching and switching.

Operating Environment

1.   Ambient temperature: -20℃ to +50℃, 24h average temperature ≤ +35℃. Suitable for most urban and industrial park environments. Customizable for special conditions from -30℃ to 60℃ to meet different regional temperature differences.

2.   Altitude: ≤ 2000m (standard). Custom optimization available for high-altitude areas to meet the needs of high-altitude mountainous areas, plateaus, and other distribution scenarios.

3.  Relative humidity: ≤90%. Anti-condensation design adapts to humid, rainy seasons, and coastal high-humidity environments, preventing internal copper busbar oxidation and line creepage short circuits.

4.  Pollution degree: Level 2-3. Indoor type resists dust and debris contamination. Outdoor type resists windblown sand, salt spray, and mild acid/alkali corrosion. Suitable for ordinary indoor and outdoor conventional scenarios. Customizable enhanced corrosion protection for special pollution scenarios.

5.  Installation inclination: ≤5°. Can be stably installed on walls, brackets, poles, or the ground, adapting to different indoor and outdoor installation layouts, meeting installation requirements for residential communities, municipal roads, and other scenarios.

6.  Environment: Suitable for both indoor and outdoor installation. Resists mild vibration and strong UV radiation (outdoor type). No corrosive gases, no conductive dust, no flammable or explosive hazards. Outdoor type resists heavy rain erosion, ensuring long-term safe operation of equipment. Some models can adapt to explosion-proof scenarios.

Technical Parameters

Product Features

1. Copper Busbar Conduction, Efficient and Stable
The main conductive component uses high-quality electrolytic copper or red copper busbars, with the surface treated by tinning or silver plating to effectively enhance oxidation resistance, reduce contact resistance, and provide high current-carrying capacity and excellent heat dissipation performance. For the same cross-section, the current-carrying capacity and heat dissipation of copper busbars are superior to traditional cable connections. Low temperature rise and good stability during long-term operation effectively prevent heating, burning, and other faults caused by poor contact, ensuring efficient and reliable cable branching and power transmission, meeting the needs of high-current distribution scenarios.

2. Flexible Branching, Adapting to Diverse Needs
Modular design allows flexible configuration of various branch circuits from 1 in 2 out to 1 in 12 out, supporting switching and connection of cables with different cross-sections. Branch circuits can be flexibly added or removed according to distribution needs, and later expansion is convenient without requiring complete equipment modification. Adapts to cable branching needs in different scenarios such as residential communities and industrial parks. Strong versatility enables standardized layout of multi-branch cables, solving the problem of messy cable branching.

3. Fully Insulated Protection, Safe and Secure
Internal wiring adopts fully insulated or semi-insulated encapsulation design, effectively preventing safety hazards such as electric shock and short circuits. Copper busbar connection points are equipped with insulation protective covers for excellent protection. Outdoor type uses a double-layer sealed structure with high-quality waterproof sealing strips, achieving protection levels up to IP65, effectively blocking rainwater, dust, and windblown sand intrusion. Indoor type has IP33 protection, suitable for conventional indoor environments, comprehensively ensuring equipment operation safety and operator personal safety.

4. Reasonable Structure, Convenient Maintenance
Zoned layout design with separate zones for main and branch cables. Wiring is standardized, neat, and clearly labeled, facilitating quick identification of line nodes and fault diagnosis by maintenance personnel. The panel is equipped with a transparent observation window for intuitive viewing of internal wiring and operating status without opening the cabinet. Also features a lock design to prevent misoperation and malicious damage, suitable for unattended outdoor scenarios, significantly reducing maintenance costs.

5. High-Quality Materials, Durable and Long-Lasting
The enclosure is made of cold-rolled steel, 304 stainless steel, or SMC composite materials, offering high mechanical strength, impact resistance, and vibration resistance. Outdoor types are treated with electrostatic spray coating or pickling and passivation for corrosion resistance, rust prevention, and UV resistance, withstanding erosion from harsh outdoor environments, suitable for special scenarios such as coastal salt spray and chemical industrial parks. Internal components are from first-tier brands, offering stable performance and low failure rates. Copper busbar connections use bolted fastening for reliable connection, with a service life of more than 15 years, reducing equipment replacement and maintenance costs.

6. Customizable Design, Wide Adaptability
Enclosure material, protection level, number of circuits, copper busbar specifications, and installation method can be customized according to user scenario requirements. For outdoor high-humidity and salt spray scenarios, enhanced anti-corrosion and sealing designs are available. For high-current scenarios, copper busbar cross-sections and heat dissipation structures are optimized. For scenarios such as residential communities and municipal lighting, compact, multi-circuit designs are available, adapting to various indoor and outdoor low-voltage cable branching scenarios and meeting personalized distribution needs.

7. Easy Installation, Cost Savings
Supports multiple installation methods: wall-mounted, pole-mounted, and floor-standing. Compact size and small footprint adapt to scenarios with limited outdoor space. Multiple pre-reserved cable entry and exit holes support cable access from different directions. Easy wiring with pre-wired design, no complex construction required on site, significantly improving installation efficiency and reducing construction costs. Installation position can be flexibly adjusted according to site layout.

Core Values

1. Achieves standardized branching and efficient switching of low-voltage cables, solving problems such as messy cable branching and poor contact, ensuring stable power transmission, and supporting safe distribution of the "last mile" of power.

2.Copper busbar main conductive design provides high current-carrying capacity and good heat dissipation, ensuring stable long-term operation, reducing equipment failure rates and maintenance costs, and ensuring continuous operation of distribution networks.

3. Fully insulated protection + multiple safety designs prevent safety hazards such as electric shock and short circuits, ensuring personal and equipment safety, adapting to different safety requirement scenarios indoors and outdoors.

4. Modular and customizable design flexibly adapts to different scenarios and load requirements. Convenient later expansion without complete system modification, reducing initial investment and future upgrade costs.

5.  High-quality materials and reliable protection provide long service life, adapting to harsh environments in different regions, reducing equipment replacement costs, and improving overall distribution system reliability.

6. Complies with national industry standards and compliant design, easily passing project acceptance. Suitable for various low-voltage distribution projects, supporting urban distribution networks, smart grid construction, and new energy transformation.

Our Advantages

1.  Fast selection and quotation. Familiar with cable branching needs in different scenarios. Provide customized low-voltage cable branch box solution designs based on user distribution load, cable specifications, and installation environment, precisely matching requirements.

2.  Standardized production. Core copper busbars use high-quality electrolytic copper/red copper with advanced tinning/silver-plating and sealing processes. Use first-tier brand components with full quality inspection. Fastest delivery in 20 working days, ensuring project schedules.

3.  Full technical support: installation guidance, wiring commissioning, operation and maintenance training, and rapid after-sales maintenance. 24-hour emergency response mechanism. Localized service network coverage, quickly resolving equipment operation and installation issues.

4.  Passed CCC, ISO9001 and other authoritative certifications, complying with national industry standards. Product quality guaranteed with stable and reliable operation. Successfully applied in multiple residential communities, industrial parks, and municipal projects.

5.  Enclosure material, protection level, number of circuits, copper busbar specifications, and installation method can be customized as needed, providing stronger adaptability to meet various personalized low-voltage cable branching requirements, balancing practicality and economy.

Ordering Guidelines

Please provide the following information when ordering:

1.  Application scenario (indoor/outdoor/residential community/industrial park, etc.), rated voltage (220V/380V, etc.), and rated current requirements.

2.  Number of branch circuits (1 in N out), cable cross-section specifications, and connection method requirements.

3.  Installation method (wall-mounted/pole-mounted/floor-standing), protection level, and cabinet size requirements.

4.  Enclosure material (cold-rolled steel/stainless steel/SMC composite material) and special functional requirements such as corrosion protection and anti-condensation.

5.  Usage environment (high altitude/high humidity/salt spray/low temperature, etc.) and customization requirements such as high current and multi-circuit configurations.